Eustache I De+ Boulogne
Eustache I De+ was born about 0990 in Boulogne, Artois, France.  He died in 1049 in Brabant, Belgium.

 Mahaut De+ Louvain
Mahaut De+ was born about 0995.

 Eustache II De+ Boulogne
Eustache II De+ was born about 1011 in Boulogne-sur-Mer, Nord-Pas-de-Calais, France.  He died in 1085.

 Gerberge De+ Boulogne
Gerberge De+ was born about 1018.

 Lambert I De+ Boulogne
Lambert I De+ was born about 1020 in Boulougne, France.  He died in 1054 in Bataille De Lille, Flanders.